Lithobates pipiens formerly Rana pipiens, commonly known as the northern leopard frog, is a species of leopard frog from the true frog family, native to parts of Canada and the United States. It is th
Lithobates pipiens
Young northern leopard frog
Two burnsi morphs, a green morph, and a brown morph of the northern leopard frog
Brown morph northern leopard frog in a wood chip pile in Iowa
Lithobates sphenocephalus or Rana sphenocephala, commonly known as the southern leopard frog, is a medium-sized anuran in the family Ranidae. The southern leopard frog is one of the 36 species current
Northern leopard frog
…snakes. In one case, a mouse-eared bat was recorded as prey of this frog. This species is similar to the pickerel frog (Lithobates palustris) and the southern leopard frog (Lithobates sphenocephalus). The northern leopard frog produces specific ribonucleases to its oocytes. Those enzymes are potential drugs for cancer…
Southern Leopard Frog, Missouri Ozarks
Southern Leopard Frog (Lithobates sphenocephalus), Occoquan Bay National Wildlife Refuge, Woodbridge, Virginia